{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1316368",
    "entityType": "User",
    "nonce": "0x1f55a2b993e6a0ce15af631aa3f25bafb5e8d4323f5e15176997adaf63af80ba",
    "signature": "0x1f00b72409ee89a113876e4c0b76b496aa22714c5d0afb8625ca223584e8b39d7a5d68f8d57f384a183c0f7a657248ed22572afb73c64e78b7c75ccc0bfc969d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}