{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec197b226e02d5ec5f578501381e72849b578f5ee26aed32a2d3a3bde31f2dc8",
    "signature": "0x6d71d0521b469962cb9686955ebf30028e6a08f1fd51aa10c673616534f072836e65142c20eebea50f00d3491bd9770c169d32b2b08131af63c9745bf22b5cca1b",
    "signer": "0xD5CFA3876DF32ADb15BF9B7B3A24bF13e2F81Db4",
    "userId": "363174156"
  }
}