{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204194",
    "entityType": "User",
    "nonce": "0x0f02a17aad94b0d64be0feb689e840763b79539807f3626c7e2ba2d3c63ce781",
    "signature": "0x3a1ec36ea7c0285955fef9ed1e922e539e2ce518e20c1baec684ba9c1e2214cb03b993f554d52dd314aac02bdce669b6a6fbbaf74e3a1308a5a1021f7c9e22c11c",
    "signer": "0xCf51c0CB439FF3aED8c04d4676b43572a8F8FB93",
    "userId": "763179319"
  }
}