{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x194eac31be41c1611b78eb3966807f75f736a0de088df68b01a4395c92c7ca79",
    "signature": "0x6fdfd843e7b5c667aefc042f2d0402abb1e7b607767f2f4ec8007eb57c3b93c31d0d47a92b482a8139810276ffc567a62162cb8e6ebc0689e98676f9ee39a4651c",
    "signer": "0x85a5DFEF5567E49617c6e02fDef67315e9893ceD",
    "userId": "723427438"
  }
}