{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171007",
    "entityType": "User",
    "nonce": "0x66fda001245d5eb153257540cfd8dd8a7b3fb812dd7dfbf5a91f7f90175ae572",
    "signature": "0x7066149fc85df5fe9d94a4a3888e577f3defdb0e1c69c710c4384067a856f72e1c41ad3095ca2f8ff2de9d0e515bc69f040242d3b7917c7a6129107099de1c6e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}