{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd92e02a1fabbb1a7a4c1874bbb810f8c8909c4891c5c301a7bedd02a5fe6e8d5",
    "signature": "0x61c867180af7dd6e216398a30e40343c1ecb5599391ac5b10a26cf0cbf000fcd75978eb229f36650f183530a13a18fe9170c64d63c84f1be8f1c690a9caf217d1c",
    "signer": "0x03216709b3C72cC48C8Cbd8E8100689b00Dc5b63",
    "userId": "530432949"
  }
}