{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x53b8065343627d4633c05ddbbd65abc1c0617919bf3d5b7c226057ab7c9770c3",
    "signature": "0xc71ec0619195d050f50c1de900e593557d81d8b436b0d313954f91fa74115c0c669dac9ac388a92f8ba3e7faf0bb5320c420cd64b94ff673bd44fa7a5c84ca0a1c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}