{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1139109",
    "entityType": "User",
    "nonce": "0x415b67a73bfc807dc3d102097523bfe5682d5ee01f2d5e4f250cdbaeb55f64e4",
    "signature": "0xf59d89075356a8f4dc1b9edd62eade7564adb4073435c69e4fdb494c02edac0979ea3e5be0e63c45be7f15a9cc3c4bbab7233acea0c0b1835ebcb9d6f05406191b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}