{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x6d09aa177516f2e1379372de7f06f79b19ec4680f3bbaf8db73e2b825d9b6aa0",
    "signature": "0xaa948804b9ea40ec537e4faa4f6454969d81a3aa0bc5e2888c7b7f509308557778cb48d54956f8d6d70b2f8933bb0c100fdf31f0894674586f6c360b64e6c8491c",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}