{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "989643077",
    "entityType": "User",
    "nonce": "0xade8548a921c0b3505af577d8027f363b2206220969265a506e10461e7a6bdea",
    "signature": "0x5dabdcbbb7d647ea732a9ff733e748bf7cccd4d23c0ef4a059dd07ab35dbb29178ecfc8fc471d611d19cde412f7f6b9257566e8d45768e29e50011f57a5304d11b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}