{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9507",
    "entityType": "User",
    "nonce": "0x87df8be51a7fc0e9947986d76b14df75028bf8499acca119e21b37dc88fe4945",
    "signature": "0xf07161c58a1dce1672e8076cd617a2c80ff9595aca1b5e5ed47bd3ae14d3eb0325c2f30d94d336bfd5c87e6b14b0128eeb5e112f252c865dac6b0537a30199611b",
    "signer": "0x884490CFa947bC5C5d41834F53666866b78D19d6",
    "userId": "475900419"
  }
}