{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x427c128e0476bb460143a0059233f72d9cef2ea4b04d8577289ab9ac04df25af",
    "signature": "0xfc95b2c0832e426e4dd4144d75116ae0802325bcc42b7b906d2f6cf96fea65bc3ede386b9e763f50a89774e4771ab6bdfa92e1a453553b713b545f29b2cf84531c",
    "signer": "0xf43B93bEA26D4fdE1EcCcBCACa587d6edF8bA4f1",
    "userId": "93242260"
  }
}