{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x003e7af85ad2f368dc972d064d79c8ccfa58413574ae5dc9f937d526faeffb12",
    "signature": "0x7252eac32bb7dc688faa9f035543da1a65420c002f9981d3e1958e4093f94b69109a080e00915e8e132e35959ada3596e179be6b2e1571aca91a68cf80047d081b",
    "signer": "0x64843180f72F2717eFF4639cfCEF6a0a9872D02D",
    "userId": "701604249"
  }
}