{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4588125b55e3f136c50d3922c71fe205cc15dd2176ddc313ea70ba9a8c1d7c8c",
    "signature": "0x4051826485dae1284079c11b27f70d63a9224cff65ae2d57a0fde28d13cc27d52f5ef20003dddefda79ac7e1efcb1c204b72662d105284f038c303168f6808821c",
    "signer": "0x77833562adb5B57b0187a2950632792e49FC9700",
    "userId": "630757315"
  }
}