{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8e754316f7d4716af2b10738f1750cb7a26576793c33b5ac87c66a86b09a50f",
    "signature": "0x4b42a8651a0b744b93841f6c3ee0542e9baf17c62dd8e13da3bc0f167e90e1aa7188873ab81f646d4630ae5207ef744f4e18f7c2e1992dfe63b6649aa6b161821b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}