{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348474",
    "entityType": "User",
    "nonce": "0x01c73e576cc602eb92030d1e10ca85f2255625929826bb085cf6af4aa3d04ca7",
    "signature": "0x963501f03513dd0eeb93dcb8e6a315f5ad0316a20d93512d5a1c67137f49f5e02c0ca132e8fa615f777b6644cba44618fef54a830a160e9102e8ce00e0447e6b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}