{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x514c7d9be3260b21ea198e5c2c3e156289e83bd25b367c707f9ec6c664d8b011",
    "signature": "0xb304f4bedc4838df47b54732bde18164ae53025f7784105ede9027df0f8ce8221427aade93673c9d2fe59280ac2d2fdb9c6473523f942d28889b5930ff77ba171b",
    "signer": "0xED6528a4b401e502a0f68289b565Ddc51Ee03B14",
    "userId": "845647975"
  }
}