{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeabdbb1c5e0068f4167e3e77e6a29b27724f92a9750fcc89df5d791e7ea64b4e",
    "signature": "0x0f6f5a2a53278f9b7d9db3f634c0a562313e48abad87abce6f0cde3ad37ca0c37fda3b6c036fea7016a3df2c5933a27fd4bf49448e0979773766770bf8f48aa81c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}