{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274553397",
    "entityType": "User",
    "nonce": "0x3bade63cab000b56e1cfdf70d18bafd782d22040c4692bf2e629a14d9224acb6",
    "signature": "0xba3bd8ffdc0e3ea426c01ce8e1108f159a55456fa1a27da0c480ba1c730a8bc3468814edc2308a2dedf9e09799ea73b5e8472199c36fbdda4e8048fa5a5b7fea1c",
    "signer": "0xA52B9e674A818B932d315a0Fe019A6909c34856D",
    "userId": "425734068"
  }
}