{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x94aaeb740b732e21600bc700dc1998a901cad74e264872452112b8dc98e25310",
    "signature": "0x204c3c4561eb23863ac3e63662ebfdddefc24735d219f07a64f5aae2e57c1a4563c6818650f46eadc3e2239b676909a57f539ce3e09ed71413ed90f53b752a841c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}