{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05486b48831f3791ec9579f855d38276c9ffbc941b3a7ea5f222db5e771e360a",
    "signature": "0xaccb48dd1f2aa14c8282f345613f896414ad1f798633fd10bb95e56190e239cb08fd42de92dcde8c2748745ade8daef03d3cf8d0c8c8b36d0514ef54d33ed8441b",
    "signer": "0xff3C1dd8FF55065004dC3f4c1E8D6528fA839c4b",
    "userId": "774858683"
  }
}