{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xefa187c2f72bd35e11f293206d9c175c3f47c5341c8446ab56bb63eddb24d319",
    "signature": "0x5bf34960a95145c5b2797fd5a7f28ad673e7fb357e0a93ff72a09ef93f5f09ad6ede068e5ef9adabf5d64b9ef73dff3218d8e2b3405dbfbd102169dab969f7b81b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}