{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364293",
    "entityType": "User",
    "nonce": "0x0164e20b91af5e097fddfa0cd97911629fe909a2c456fd08d004d389fc37e5bf",
    "signature": "0xf4b6d8d2e54fc1239cec22da751cf9e02c2dedb5badc9e4c6f562d8c92a26c053e0389e4062840ffdff9c9b06c232ac0177ff3314348d056b8667c83b5d8254d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}