{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207136",
    "entityType": "User",
    "nonce": "0xdb085b8ea8d85cf1cc3ab0e87303918d2231dfd13ab05d373645e55ed33678eb",
    "signature": "0xf60fdcf867083bbf0b10a62006a8ce23ed51b138bea3e619fd237e73f9a5818d3c07aca4bf08e5bb4d2e555bccce344a470ae700675e926250957d033a4d50461b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}