{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc477e9b6ef89f2d8b29be7a4af5bab2c41ecc9a37d5a9146e6c7764ec9ffe3c7",
    "signature": "0x830ec564f5a08371b68e49b8a5eed7c3817a7fb84f4503c34baa31b342c613e30c4f0efd250519783ce5dd6b9bf1703ba5924b4caee44584629f86c24265797e1b",
    "signer": "0x67ed98b66e2387CD19c27795304F4e90867BfB93",
    "userId": "185152372"
  }
}