{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3cdd03eb37e39e4f751a89a889a41874c64268db944872ec2023bf0c34e8577",
    "signature": "0x3cc74fce784f4853c0a5d9e490e2580691b992dbe468ba70b36411ab68b9747d6892c9c185dc5dd17d20423f9e70b81a5e6ebd2da7d1d88b38ee0658806df61e1c",
    "signer": "0x813f5835f89886d207B80d05426Ee883357a84E0",
    "userId": "934354675"
  }
}