{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1322149",
    "entityType": "User",
    "nonce": "0x0f8a212f2b8f2fdff9f34f49614b73c315c072c92363f89dba5581768fa00487",
    "signature": "0x2eb05c1083abc4201a45d5b124749100746ba7ec8cc2c731c1144187a86c2529686c186678108da2066bbe16d834c823cfccec9f0f607aaf97154271636afc931c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}