{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125672",
    "entityType": "User",
    "nonce": "0x5e3716764d296da320ba1d118ae55292c3f9b8cb95c8c122885fabfa3b1afa45",
    "signature": "0x4a6b46987a6877d93aa83f0971d756063dda614ffdc08cace556e19092d17f145821ecb533110ddbcc2d61711ec2f6f278a6010f4776421f4a78242102a4a00f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}