{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55436554",
    "entityType": "User",
    "nonce": "0x4714c9cfd0408944fb75afbc259cf8a3fec4ff2b978b7ca708b341b08e7379a0",
    "signature": "0x5c4a3073a7faafd598bf9b1c6986ae33bb0173c97fd85fc5ed3d43327ef401ba5eaedc25535a7a197287f4d79dfc51ab18e3283c8cca46d7041ca77076e80b4d1c",
    "signer": "0x99AaF394391f38E675C75176629C26587f8a8322",
    "userId": "167325"
  }
}