{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194152",
    "entityType": "User",
    "nonce": "0x0c4223e4f164bb97b8a2c0ae1c215a41c7cb613b0edf5d4230359aee4fbfa641",
    "signature": "0x848cc3acea860bc3bb1a398498038e1d734440c4051f107ba7cffb5bb10c52c05317f92d25085f7e16edeb65819dc7c1b5e2917820bf5d8577309fd2e73d489b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}