{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144",
    "entityType": "User",
    "nonce": "0xc3fefebb4491c318aa2edf31f6462d02af2b07a7e8e9d0fab162bc10db32368f",
    "signature": "0xcd14113b8d66eaf193472ac8370438a0b5138ccd21e7f98b0b3f11cb10b19b1866572405c682707972f49e502eef51af0c1f01a962b77a2bfd81098deb773a191c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}