{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0xa148a7d82155f4a931bde87bfc6a13009b4e76aae555da66a874709eb90052c7",
    "signature": "0x852a077274fbf729679a3de7349b24d7aedec3892c91688cc81f7c262bf5d6043bba09ec9406d32b66ca1d0bdd167e5c790d78e1c809efbc8ca7f271742382ff1c",
    "signer": "0x6B2Da146c470972DE088AF9d1115Cdd3cae54637",
    "userId": "451708212"
  }
}