{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x76813137a1d320baf801fdb80fb128149cd14820e1a440abdb44bcbbacadbefc",
    "signature": "0x6d8e58a715dad8516180702c23a0e4d145bf422d02e12d919f2f681ce825b6c64d0551631d7033a6fe1427ee68cb6e6a06ba99f8737c142cf824759138a82cb01b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}