{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547841",
    "entityType": "User",
    "nonce": "0x71f2ca7a287b375cf7ce52feb52c30c7fa2d4d685c0636468e88d5436e932a4b",
    "signature": "0xe742ef268e8fe51d9f268abaa33ea52d1279e2ae69833f33abdf2d6d29fe67b82177b53b46e1e8375ed07026216e7a284ce8f6de92ffdfc174f9a2699bab56f41b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}