{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0x072039a6d8ad278c836d76826bde03e619debf8b0d89ddb4e1e24236d1081378",
    "signature": "0x5554052eefbac0c94314b6d751c0cc4f277a3f6ef32a70c3d90458364413a5a54e4227c58ce8b9823d12f50b9bcf46b7cccf4555c5bd70fb87d53baa24e730161b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}