{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53770",
    "entityType": "User",
    "nonce": "0x3211401e619dcb2719893692712883590acbc85b4ac63cbeffc4c2dfbd1c9736",
    "signature": "0x1c2ac9bd3df8e3647ffbdd6b3decf3ee292ebcfb0e425c69964aaebba10c4b64451e4d0373536a373c467ac80750763d93400ea2c4254900102c12e3e82218df1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}