{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631",
    "entityType": "User",
    "nonce": "0x8e456cd4dd6d566d7df34782848fb65617b811900b1f03dd2462b6dd47e31d45",
    "signature": "0xdbc6ea6b73babb764876dc7ae4682e49d10f2986002c6603af5f12750adc1d48085e74c318bf92514c6686c23f5305d6f34af6bb4f2fcede76adb08aaf063b2d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}