{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778636969",
    "entityType": "User",
    "nonce": "0xcca364312eb86aab2f1dbe9eb91e6aee54fbbf444b93b0c6dda5b3a6fcb7f00f",
    "signature": "0x76d39c7a3bb8a168b1848269226a63f51bff2a30ea7a67a0711cebc9cd0621cd213f41760284eae598921da1422ac4f3056423c41a92b1a779b9cdca16e3355f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}