{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5889",
    "entityType": "User",
    "nonce": "0x04e84f30e99ef55076afc5287d8ee3f590f1533c2d1a629b34f06c52f1a2bf69",
    "signature": "0x3bf155cc73cd3a2c2138be30022b36af13ee66d51f711cd3f53b517eb8c1fcf85fd885116ac735552c8f3debc13c25f06d4f7e5f1373ca42f969edb0a5bec6291b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}