{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b63428c3d1bc7fa2b21e34d9713662f49a9fc9f7a783ad0f70be281af42a8af",
    "signature": "0x1ad583091a084cb02767ec14a404db11fbcb83ccff6c46283f75b5b0a0175a5f27d53a499bcc4706d8eb90d7d6727bff45b9fdcdb85032fced2104002c101fa91c",
    "signer": "0x907aC62756E029bf9e827f2fe5B765617aA619fB",
    "userId": "189047632"
  }
}