{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313260",
    "entityType": "User",
    "nonce": "0xb7e4b3ac740b821e30bb3be86ed86864be999de5dd5469216b6d2d9dae3a2221",
    "signature": "0xe2f8e18753a4ea4524399eaafa81825dafa1aa5977dd7efd642055c4a3990bc15f0e7a1b9b933c6346daf0673704a17f98b5ff887e98f65198fe4eed172c86181b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}