{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x78a67e92765482f918b9dfaf183134963bd5f01f499ed317790f833e5fbd6a9d",
    "signature": "0xf95b6e452f20e1ec8a58a7d7f3d13cb14a6d36627eedcecde162e413d935042763b30f831a4da2f53acc2a7bc3fe39876b04500fdec55247fbc94e681f189e8f1b",
    "signer": "0xa308FE627c5c9982ABc1B5DcD06693c0bC535523",
    "userId": "365375789"
  }
}