{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152866",
    "entityType": "User",
    "nonce": "0x95e75f8f7d2ac47a1f8ad8b83969b003d3caa10eb7aecede80986daeaadf3ae5",
    "signature": "0x63ba76c0ba68a01f7cfa65d26b5961317994f0a196cd8f9eaebea67241d69bc15ea073ac0e14c49781da0d36c75344bf678cc2c03992e723341249476de1fce21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}