{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957873025",
    "entityType": "User",
    "nonce": "0xf0734dc2825c797ed149198ff47a3c5efb6a98ea361dd5e5b7914088d6c4e082",
    "signature": "0x9bedddda85aff8c45ee4fa7876b7553a7526864fbf4af2d8fa8050246416d16265aec7bade7c9c8e740f6d07ef4e6ce76eb963ac58d95c30692ba3e40e7b5d7e1b",
    "signer": "0xE18f37f193553F7bFB76f10C386b65159Ae304E0",
    "userId": "4510"
  }
}