{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489165782",
    "entityType": "User",
    "nonce": "0x43289cec207901223556f4cad12e75f1f794e088588cc9b6a3ebacae9f54ffff",
    "signature": "0x71cd8281b7bd081141d16d4bae2ada94c37d18f775d0c5d1d17eda58afe816970a5c33994bec19eea02d72dacad1b73dfdfcc088140ff6637a3337c1834ace5a1b",
    "signer": "0x88140a1D59593e5659F5FA74af30c444D9c193Ef",
    "userId": "630153895"
  }
}