{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x658994045bfff68fc38fb99bb8f52aea7e891e567a33d125df9f1261ed368a05",
    "signature": "0xa99a5c823cd3bab7282f73760c434c474c18bf70ac1763ae7d70d45a7a39c5cf7b167d8926ef55ec9f3424942fdae8030987e58316bd0467c8bc54d747712f751b",
    "signer": "0xe73C39BDeD48cA3Db9192d29C973a731b3deF33f",
    "userId": "55368559"
  }
}