{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0x2aee71393c92670b95b679c81ed2e75dc8ef818a409730bdea66c389eb5c2db2",
    "signature": "0x8e929b71f1130eeb6fc0b8ff7d342ce0fc5a83b64900b1c324cdbc53be749c0218c6c07d8a49b7335d992454405c4ae0df87caaf7101494e68ed26355a5ada4c1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}