{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdb721f8d09e8f15b6a92cbaee6e6414c600c6c912a3f47c660e375d4dce1e90d",
    "signature": "0x11d4fc2e6aa08b2eef9e0a6cbba30a67ddf2d5559d0d61999434d986e1511f33387f56e912e3438cfb1bc234f4ecf229dcdc585d346446a23c5d32a9458bd3931b",
    "signer": "0xdF7b97B84dE9f20D3209339266363cb001F2902f",
    "userId": "504270527"
  }
}