{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59a377d4f9dca23dc4a3d0ca318aa55d98ad6068c4f89e44b560e79a4ca3035e",
    "signature": "0x016860643b0dccb43fce72cc41c44d514ec183883770309e0da2b43cc0edf86f6089b5b4287344daad741b9a8a9583a7ca1dd9c5d51993e8665be2f785ebe4771b",
    "signer": "0x56046a31D7E65D9342F04D2FE7819A0388654272",
    "userId": "612767122"
  }
}