{
  "manageEntity": {
    "action": "Follow",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x8857ef76624346ec172f8f12b4d193bd90e231372c00ffe19ae92009ccfe94bc",
    "signature": "0x2f292aa0f8a17052bd190574fb1dd8cf5d99c3d02f90dd60a14b20acbb98d2a6158c7d4a4362bc97bf570678d8533f1ac9ae13a7c86cd6ccb87facfd550b6d761b",
    "signer": "0x13f8ca0832087662A9bA298e1F708853B8615826",
    "userId": "990836999"
  }
}