{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x5e11f7478d65fc663ad7eacc99736902c385b339a2361d5df52eebbb8c43bf89",
    "signature": "0x574c954a25dc7f4c5e6b8693c0de9bf23a9b10d1b6bd2a37376c4dccfbb99d3230dccc45d819e949f01bceb3ef13cb0691fed91d0bbd00abf7498b0edca813f51b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}