{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e3aa38b9c7f982e66eedc286a2d52d54a9f4057c94829f8939c3858c9ab099d",
    "signature": "0x1c190dc0ef62bd05366bda9893143e4211560c37716733dc8799859c93d72b8825a570875f50f9ec66510da3aeb0f1e44a389607d9be8d19f92901699acbe45d1b",
    "signer": "0xA84D5010353EF6fE613cbE7b8ED85880A962cA97",
    "userId": "602512437"
  }
}