{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124266",
    "entityType": "User",
    "nonce": "0x9b005b11e563e1a06dd45dae5aa1bd84194558fd97fabbaac3d41a5222a1d71c",
    "signature": "0x7875346e2421c3d65151dacd9d905a3654acfbfaa8a2c8270469d3729b67871c7d15fda24e1d7619237d5ae48243cf5ca6ac4e805f72ea62717238eb2e7c0a881b",
    "signer": "0xf2A3959FD8c093454867658F3230042b9388B84B",
    "userId": "387870391"
  }
}