{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xee814fe366692fc5a7c2c468e4d688555446c4a2aaeb0863cc417a2bad0c30fa",
    "signature": "0xcf0e4810d414756cafbd4921db5545fd93f1c8d1e2dce21cd59096d55649d2ee6dab8573307dbb85141d3f2271a2830f24527e1a5dc443501e82f2809ea69f9c1c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}