{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e77b431d32c0323db8e5a303aaec22f8aa0e01477b360ee7203f0fffed0b743",
    "signature": "0x3f51c4da1ec2e2f63c278c57e5ee6e1c1ce4ce7071e1d34061597f68bf11175f118a2d6c49e6c7a766eef609950715b353ae571ab38b30ef2c9a1b3abca691421b",
    "signer": "0xDbF38B495fC1745Ba800b357B1a80836051aE605",
    "userId": "392867436"
  }
}