{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd738579ea6181cc36b9b23e3a853c8d7624ad42558c86ea13464615a052baf6",
    "signature": "0x77214624dcae91716fb748cca5510df0866de0d8aee7dce6a7000b60738874aa26fe0bcf7f86bbac02d56057b5248479b13ad785cc018cfe5e8770f5f0729e3a1c",
    "signer": "0x4C73FEA0aE69E486D85ad0140922DbA40BF09299",
    "userId": "776669163"
  }
}