{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0xae3b315d3b922f671b26c68d9acc9f90a81307ba1efa828c82bfbea7aa11edf2",
    "signature": "0xe6f0cf5fab43716780a9ac47d1a6463ba3b8007cc03d7cb8de0aa122c05e25a510e58928c2c889f5fa69c4fd0f62cb3c576f2a4eea459b362db729fe2d56ce8e1c",
    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}