{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "595768441",
    "entityType": "User",
    "nonce": "0xe669d8c9b5cb5e3fd86d1ad5959d5104e25290ad8d26053dc5b47b7088b2874b",
    "signature": "0x7c31ac36cbbf005f4aa9ecc2304ef30014b612f4ecd6b1af354d6a05c18cb16b6d12ce47d066799a865f5d1f5779131bf427373005db48fe3e13dd9f557c926c1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}