{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81539",
    "entityType": "User",
    "nonce": "0x643ce98e99b39fe8004c06f637b73e60e9dd0bd3d0439418b4196c1ac08a9de3",
    "signature": "0x0c2181eff72e4c4e380918daa30a0cf3f95cd460355c4a76d5e5ece8513e4f206b429e9c1e8e69fb6d59a36fdf732b1a4d1f77930558d7f40223aadca40669881c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}