{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "587492476",
    "entityType": "User",
    "nonce": "0xdc35bc8951f0c6706a5d9b996dc3e0cd8ca110d2d2af94778a9ee5e6266095ed",
    "signature": "0xb8b11fdb9ace1969037511c44da56d1ede96e4a15c4705ead7a2e5c613c01d5c482448871e23c85e4514f1ed53ffe601c050f89be31aa76e235bf74dfd9f6eef1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}