{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0x000a03dc203678f9c5df348b1c347df6e91e9c1f033eed508c16d380a8118e23",
    "signature": "0x30e0a7f18a4839c145c0d374cac1b1fd8ab4f969e51273094bccf4f65c44f1ab2ab0e9ddbcb6cf7a65b50ea67f508d303f36ea4a66304aeae14d36920c59c51b1c",
    "signer": "0x405A18E09D8C4100F2412f37001497351EcE9C2c",
    "userId": "21357518"
  }
}