{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc1eb2691532d81d1cc3ba843a1fd3396d59fcb724d2925bb59f799bd86ce345f",
    "signature": "0x8dc42f60d69b4a27b5e38e0387224d51070b64997ec7ddd5b19edd8698ab70a5685a4807fcc142cd1149cb3255ed4a56faf385dfd1f6644ac740a3296343f0fd1c",
    "signer": "0x685cdEEAF31FaD58A322ab1E9f1aD42Ec48354AB",
    "userId": "403619444"
  }
}