{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7fce923eb40c5b30b2cd1379199c39908bda2fa51bbf46469e1ff39660382d41",
    "signature": "0x894cf3a0bba1c1a47bc3ed2a75a6b084351ed90ba3ffaedff4cfb4b7601cf2682a2b444580ec2d9409a86eb461a553832edd356860249a1ed47b33bfbb62198a1c",
    "signer": "0x6c6bcd5eF4F7429E694272DB167842cdB39181eF",
    "userId": "355126946"
  }
}