{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22794f42ab92f5ebc8eb3f5dc5da1241f8be7fa86153ade1974d56c9ce8dad29",
    "signature": "0xf850230be032b0584419b37b3c41c09ae01b376c7d0de9527c9774414a1739bb4155a1883abdc4c2f1b2b88b317b70f1ea5514bce7f6d561a69d442cd0e5f8081b",
    "signer": "0xb7379614B0eb5DF6A7e34B5Ab3BeC1DBf061312d",
    "userId": "155222632"
  }
}