{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc32c2086b295c3d3176ad1c0acc76d259d3defa1b32fd684b66175b9f3aae6e5",
    "signature": "0xfe639625b6c4ba4484fa20348ff71c8589c92f3bd38f117c8f4b05208ca85ec13476b5729843f1f753787ef70a963aa33e492d811e240ed1a4d3eee41befb23d1b",
    "signer": "0x554Ce8caDfBe09482850A1052300A0A4617252AC",
    "userId": "272476326"
  }
}