{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "438576",
    "entityType": "User",
    "nonce": "0x33bbfd3f9a03865f0d74a58bf830beb467aec55749ff828850d4f852823add0b",
    "signature": "0x52231da5bc5bd2df52ead85fdcbd01f6d06e51b6e51bab5e89c9988950e463433921d742916da495747be1d9547b60b65344296b8ef82afacb92378f40470c251b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}