{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163447",
    "entityType": "User",
    "nonce": "0x70664d8bc3b2119fd03d5dc2972194774230db75560f833eb950dc4dbad9833b",
    "signature": "0xdb1504f027893aea016bcd4c735d82e5376e009439fa8d22e229b3a2421394ad4b086a4e2fe839541b8d332cce2935ac9b0491859be12e3b034d9e5d7e093ee71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}