{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0x11a462df662e5f6b7a1d7f6fac3bc086937eb8a018b1b358ea2568d4af83d00e",
    "signature": "0x6e3eb2056f716cb57f46dc42e66fcbc6051d1d76c52cc9066fa83373bf833ceb04cd0d75a29c3d864dd11a2509b24a51005b4d498e0262f357becea2d23016ed1c",
    "signer": "0x9eCfa3D3CD68A4dFc03296399F57A033fFBD5dA2",
    "userId": "787100055"
  }
}