{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2333a26ae48fcf2f0da08ea184b02a4469d4fd5ebc0fe345401c0e714e3d8e3",
    "signature": "0xf418013612fe5b3271faa9a383fa7ddfc00818d059b5a58dbb72be46c1d3ba387030ea22564a742cad355671a49da57ec4a3d0ac9e5e08f407ca1a014dfe200e1c",
    "signer": "0x27ae790B7aAcA244c689df0FE958D5431f1e4861",
    "userId": "669640444"
  }
}