{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7ad7c7948062e2b725448e4eb0e258640fbe4f355d1bf6dbcf5bbef4c14b2cef",
    "signature": "0x3cc0565e89d387cdfa51f6b048426ac85768d18829488dfc1b55cd2d0d0ea50748f7adaee577bb8786f6287ebb1f1d1d84f33a4d43fec17b800b3764284fee1f1c",
    "signer": "0x46bBC98Ed2Bb60db98Be4656384ecE1958815fE3",
    "userId": "940200071"
  }
}