{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9abaced59973d0456f38d521e0d6b5ec6101a4e5e1ee1390d4096cffd59e0157",
    "signature": "0xb107228f68a8becab98548aca9313f6427f385f32995e2915de098b5d5b60d2e104789666adb03f95df1b22fca95b569775fd0c117a4aab38f83fdd618918fe41c",
    "signer": "0x74F2E3a6BAA3eD1953D05E7432A5dA2F92f61604",
    "userId": "553679475"
  }
}