{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761103314",
    "entityType": "User",
    "nonce": "0x2d452b84053743288ef31ca017a050790a59cddd4d5b666153d2bcdf9893bafb",
    "signature": "0x17c09ef811d279f405f3f66b42de5ce7ecc9e61c28441126d625518751ee4b3809bf9e11b982aa7444319baf33c46e26bfe046d93e66dae0820ecac9aa0d53471b",
    "signer": "0x486a9E9883BB36044880Ce317Ba79bCF0Bba16a7",
    "userId": "430272308"
  }
}