{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748846998",
    "entityType": "User",
    "nonce": "0xff1046fe2a6bfca103375e34fd05f32991dec04261440673b6e345622f26d505",
    "signature": "0xdddc3602c88c44a23e8b362b6a377c8931ad548a9d4780668eb712b5d4f390cf6237ae6339515d51541dd563561a50e278993f7102ca94f59bb280d2344da8041c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}