{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x052da673185bf14352c01a3b395151242b33b9913f6c5efa9da1a17fc7129194",
    "signature": "0x388df664019dee138c94f69f2391c1196bf30b7634daa319f43d387e13745fa50b914d23f7ba3870619ace376a74a5e52a24b0f0a61b66084596bc0cea0637791c",
    "signer": "0xAe945B3C2095A22e11eaC04b4682f81B3c4FBD01",
    "userId": "823471573"
  }
}