{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "817864519",
    "entityType": "User",
    "nonce": "0xdc1db3a145fd11627cbf92f86b300e730f849aa3db442550749aa59c2c8c62b5",
    "signature": "0x920692534e913fd6920073256fc6b24d88853c2cb3dc602b39531afcef9cbaba337fc5b86eaeb1a65abbb7039570e4f6e9ff91651dbe97340e46c7d5bdf03bb81b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}