{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae7df4022b13dfb1994d9d03cb6d08178e27f97e3715c96853ecad5b6fb97083",
    "signature": "0x9dea3a20c896076f14ecdd471542d156456a6ab668cefa1445518a5307d0ed6a0b4fc969b1141dca91e516d8bed1ff873ee82f5d18533c1e63eeb47989b0ce4e1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}