{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27983",
    "entityType": "User",
    "nonce": "0x8354c88200c57290882da7358500867fbc8a2ab52113a38fd62264899e9ad8a0",
    "signature": "0xe1223b907b63fb44fc3fee0a0470889fcca589cb6547a625ecc17930aac5e2841b57b5f401892f1aaf83027e5c07e197c9a595b708eba0418a8ce5d5d99ba0ac1b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}