{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x3dc5e65f2d5d69a0548f953b8484f74a2df32c271f388c21ec99e60195ddb138",
    "signature": "0x6f1d1294cd5413e426d2f9f33a18cc05870a8406748437bb12392c89cd2783e75f15fda2d3ea3bff1340715b56f0b006b1004616b1b4f17f5ea24fd0ec494fab1b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}