{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda7e780c3c0c0953cb98777a931aaf133bf5fcd971ce2d865ea59428c4702bf1",
    "signature": "0x233f6ed14bba8a8a6bb607e9a4c342691010c10e34343d3ffc2c25c0f2769e3b4e2d05311c01a7a398a710c17aa5aec911e539bfc06cb840416347fad815cdb61b",
    "signer": "0x60077869Ece6F465A0eE3536C25c29A1D374afc9",
    "userId": "663242911"
  }
}