{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374637",
    "entityType": "User",
    "nonce": "0xdb917639dc69f8612e383ab831993cc4a8f07c7e23851aace1c537e5c56476c1",
    "signature": "0x5919116e3694c73c070d2bd6eef6021644fa4d05a2a1d5487901118ba316141d5967ab27b0d442f7a1bcafe81fea6fa5e8cd1773a7045ba46837f7f7c269fda61b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}