{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa7ca2fa617f168f772203cc60fc39659692a36327a3a559765c7151e2918d02",
    "signature": "0x54e9b1048b54bd640c5a958704cee7c51138088fa22fa01ce9ce9bec6e29c19e59913c06f9060fdd532a3f038d46cf61e3ac383ce8899ac1fbfdbf7024e0f6de1c",
    "signer": "0xcB67b82C6c4F3c3077eADFCf5Cb3b7c94beC7766",
    "userId": "900895370"
  }
}