{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd26a519759fba1fea0e59a0f8fd8b325252ca63b738b570063aa5595991c4acb",
    "signature": "0xde5e21ffd85c57e53bda5397fc76bd3f913732805292d6766558bc680c3345da7f2c88857aa83de4aa8d2b4bdb3b0a4132ee2c0ab527e6ded7953b5810fb8d491b",
    "signer": "0x2bbD320Cc6A99aa3286f71561c8B956DB3f1F815",
    "userId": "159540364"
  }
}