{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319704",
    "entityType": "User",
    "nonce": "0x471328f88c6245afb0be77c2c49ac885b719a7e106af7fbd5ccc5b4414aef418",
    "signature": "0x686bf6a47f26129453a9d6bd24fadca35d133391ca091c99911759e71a397925290952b1c0c016d902176cda57621de94b93a0f7a68a58164297938ec0387b901c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}