{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847673429",
    "entityType": "User",
    "nonce": "0x33c980485ad544f347ec4d650dcf6c42278444db245df2884762f7dba40c948d",
    "signature": "0xda761b9db4df14721667e73407fa22f4194b93c9116199cc8c7095c5ef126ec77e1d979beed8a3894747e9f900a5ec419ed13b42d8c7818c55856f71b5f9233a1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}