{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53439",
    "entityType": "User",
    "nonce": "0xfd881f4968de8dc823787cb003e091e3f31e37763759711df91219bc234ed8b3",
    "signature": "0x84632351df12048da40765400d496f0d2c0981d1361de7c3dafbd507ceb508194aa59995c2876aae88108f91e07203334a0f9c9be140ed2739011c5423f8e1fd1b",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}