{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121885",
    "entityType": "User",
    "nonce": "0xb4c9b39b1b67556020add9bda59619f7778cddf067c21ec520bbebbd9cbdbfde",
    "signature": "0x8d772eb625a383c0e1f788615f426c670fecab9264562d2f4a0e029f1500f09e02d1badae1941b7f14c3cc27b176a99840b072120c6c9c41149a7586c362c6461c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}