{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x3dcfc459bdc06580db2e8ee173bf6b59f81f998d155794b644330de611ff660b",
    "signature": "0x51f494fdbdb92d37ac6af8b7f2369d52a78a84af5bc0ed655555656323c212326dc6669bd9bbccce2cb623545a13b4e496d47f623f1d7126cd0fc5857f4354da1c",
    "signer": "0xd32819732210Ea4B81f5Ee202a2bcb7704aFEaA1",
    "userId": "714016562"
  }
}