{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "989073793",
    "entityType": "User",
    "nonce": "0xd8b0627d8e963d5657cec1c72cd50d8f6ba34fbbc724a64b60250a6dc7173906",
    "signature": "0x3ad40fec22d24cc27d1f9f43329767382c2683b305c1919ef1990952a9e7747b69dcd36db08152b8ecc6c1cb48c1748a215938055811b5e4807c925f80d0a79f1c",
    "signer": "0x0f0Df36416d8B0eCB97310453479dBcead1b7eEb",
    "userId": "61467990"
  }
}