{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "360658655",
    "entityType": "User",
    "nonce": "0x7a5850563dc81d0ca1fb867a2cf3148319a63bf004ab65f2b4df41ef8a2519be",
    "signature": "0x7d44e123caf82cddda09e188733bd3f5a1557f95a6ff1bcf1ae5d2a3c9dc09de131363000235d25ab355fbdda5c30b7d335bb5ed0bfa6f8e3481a12e20c0686a1b",
    "signer": "0x7cb3978D851aBbaD3373f09F31DF1ceA399d64B3",
    "userId": "860501393"
  }
}