{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x4aa167625bab557d5ea18a2626695d4e9dd44748a9d37b13dc885aa8c351b0d0",
    "signature": "0xd1f0a736147b1cd659b682e273caa11e7fd0d65eb5e1e2d2b061c9faba0e51c064f8308eb1ce231153268ccfaa265c025bfaac4daa563a81ca51e7e895fd2a351c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}