Initiates phone number verification by sending an OTP code via SMS using Twilio Verify.
Body
Request body for initiating phone verification via OTP
Phone number in E.164 format (e.g., +14155552671)
"+14155552671"
The ID of the website
"123e4567-e89b-12d3-a456-426614174000"
The ID of the user
"123e4567-e89b-12d3-a456-426614174001"
The wallet address of the user
"0x1234567890abcdef1234567890abcdef12345678"
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