{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1340150",
    "entityType": "User",
    "nonce": "0x0b8dd65817d76c1e12e74b4adff23f0b034626129ba053effd4ec8fe9321f49f",
    "signature": "0x673f6f943649da7a9b0023245dbb72714c6b33df7a1636f28a91b9b8e74d0fb3717bb52f51d4c2f1a4037e8a821d961286c872764b5de139996001983ec68fa41c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}