{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x57ec8e7e254a3303132414ac7abd933da646457eed472efe11fbd46894c224bd",
    "signature": "0xba98e837af343b2988bacf380a06a98e1ed47b80a8334323f76fd54a17432934232130e89a0145203907486d04ad0833415b0aaebd30620b7ca53449d1151bde1b",
    "signer": "0x3963c6fb42eb1abF4d62FEFEF3935BcA2BC25ADd",
    "userId": "881168674"
  }
}