{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "590052416",
    "entityType": "User",
    "nonce": "0xbce396e25946a2f4688693df7b5ee90e6c972581a2cebf7902a876d441ed2197",
    "signature": "0x72011eb90562045855ef5dd7d7974d8fa54e0dbf6be5f414fe6972c0d4421a01234df9dfc2ae92647c00bb98e98704eacd827baff6cf80fbda19eabd67dbe6ea1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}