{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0d70223d13154b3becb88691b72186e2d7ff62d1c51910a6ca8872608c7509d5",
    "signature": "0xcf86c9ecadbf5abc312bf7bba14f1fe42eee5cf67408a70c0364f16a197fce9a563380ebca533c28a8764ad1844ff10b40abdd931af282d1c02936886dfebf191c",
    "signer": "0xbb0267f3aDDCB81796900cE2f06AC8F20D306795",
    "userId": "771605717"
  }
}