{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874277249",
    "entityType": "User",
    "nonce": "0x147c59227c1c51d4d44cdd82f89fe449d7a25abb3cdee63421bfd8e5ed373850",
    "signature": "0x3189dc0739e03e48fa8ee052f766d7f0eff8031d38cce1d741392843400bdc632331d0183b07e4338299d1286a8aa399b558c36520f2d5d28c88c73f4d8c356e1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}