{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12227",
    "entityType": "User",
    "nonce": "0x77c2b138ab1e3a749350bc2df397a2d7bcdcf5ea7888cf70e476cb53f99ac61d",
    "signature": "0x5154c69d80891a70ddadff96ca43063d7b0e56743283512a90765c299c9851ca0d6a326fe894a3d42d98122a163f96b999d48eb6530ee5177534e02cfe967b5f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}