{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x577c3c0ee047682f955a15aaa08ffb669fff8c6d14d378b7256d444a7f8615cb",
    "signature": "0x3de6d7d1c123114c0fd6955c961437677322ac20421c97776bd487f7311c08866d675130b05a18b471ad57d17b12734fe74ff67c577e891047a2f34449f88b3c1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}