{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1545055",
    "entityType": "User",
    "nonce": "0x4a0dea760bff89ca71c5cac6073f4711d81273c20a24f38b15b95e70c9c5507f",
    "signature": "0x0b2aa2b5734b961e4d772d4435bce7cc505db4f95bcd8058cd333f8c5149d718465c300ee7ef339ec0ed1d1b4a91415673dacadfefef5b37fa7d52d0ba15c3fb1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}