{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xcb3c4eb3bc33e79c27fc1d889fab0aab443129c2f271c35720091f03fa6e4223",
    "signature": "0xac2b67e29d447424fe8f5db7fbb311a7db83ab7bf2f022b18b2b2cdb522c58700f640ba442d1c5635bf47a6b7f698bad600f1fbbe6415d8cd74f9a9fce415f151b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}