{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1701243",
    "entityType": "User",
    "nonce": "0x9865bb9b476d5b1a9d4e76be1384d5c324df311d812cc4b703b7f132ba668599",
    "signature": "0xf84e4cfde60bcb1b37e2977bf7b3630e21a8de1de727e38977be481cb19290954fe847de41c6dbce347017116b93b3e17748486ce8f8b73e8035ef51f484f87b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}