{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xc0096c900d2a771655cf942800f72f8b46ffa02b9c8b31f98e4b8702305575d8",
    "signature": "0x165262f03ccda54265e0e668d84782835b36c2add7620169db8979a843369d612eb3d2c247b0574cbc6416496bef68b5206e2f7c1a3d87def8ab6781ba8205c91c",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}