{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8819",
    "entityType": "User",
    "nonce": "0x4572191f0a07d580e0949ce7f13dd599fc15e67950d4cbdffe4814362e59df3e",
    "signature": "0xbf0db3e10ce2b99b2a5c215c8733cd20e367546287d5673648b1019c5e7668ce35f55426cd3d407b4ebed747b92f830bf5d373a8460a8336a5fca263c0255abc1b",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}