{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978464946",
    "entityType": "User",
    "nonce": "0x1296fa1d8069ef6e9c54ac4bc4f348e77272741ae423c175611ff2436b746ba3",
    "signature": "0x8d6aa755c0d68682ad95a510e951f64362c9f1845d5c6202ac83aba5a221489719f7a002b4e36d57a11f4a01a0ed43c3e61ab4921de399122254f21159f6a3e21c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}