{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x89fecce760d8423e101b3144c73bfb0588e69b4a109afdba0e589476f79c8d02",
    "signature": "0x2872fa363d826bbc7fc39cd5e19b11c6ad774f6dc848ff9bf8cb9fe0a5d3eb171c440442240dbff06bae5197ec7b2fa0c1ca577d62411be02737734b3c6e34c41c",
    "signer": "0xeBAd199ADd52C718Fdfe61bA3D46715564Acfd15",
    "userId": "977613650"
  }
}