{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6793ed9ade348b3927115e0cefde2646d0bcedac02616714c004e77b185c925c",
    "signature": "0xb23a32da49df6a010b38f80d34aa1059233b23fa89d09b9f51dee1271e7a1ec24514401aa680abd1cfc5320ab81bdfbcd06d04f1d8c5e9c996b5b661c2c6f7451c",
    "signer": "0x96f5e8f4C153CA2D7adf156D1E4f5c552d1C2F68",
    "userId": "12879587"
  }
}