{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "961246488",
    "entityType": "User",
    "nonce": "0x8391f13bf2979230b5bcc09a1b4111aaf41aaf2b145b8439fd509c2c039c2e23",
    "signature": "0x8c05a43a5b3fc5e5606d0a000991e5cb638596995bda6458e89b08d463f334835685936789adb1f30c29ee476c790a2731ce0267a6340d7c611952f1411b9adc1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}