{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124622",
    "entityType": "User",
    "nonce": "0x5ab978433c5ff2ca44c314d03853022da57352b5a3be183e7415ebf78cc68374",
    "signature": "0x352d8e022fcab4f23b8189467dd3c3bf4254fa2a00de058a31c4cf655cea32d5085d00bde62730edde76aead1d9ad46b3928979341ea9ae0154df2d37568f6181b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}