{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x125ce7a6da27f15487e09a73136f15001c371b8e89cd2b4581a11a4b321884b3",
    "signature": "0x008508ab2cf3de146ee605f40fc2371b67c7d36bc32c9b8a954f9370266822065cfba950e88ce9df234acbda82f5ad8747dede0e410ac3ca49e93e4e328717891c",
    "signer": "0x72C4DDfD203AdC8e1B63eC8DB4D3b9Bd81b1Bd32",
    "userId": "126410092"
  }
}