{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977294736",
    "entityType": "User",
    "nonce": "0xed440d2ce3baa22457d8183519acf6163cf79d1f2d0252c3fcba9495f9d0e8f7",
    "signature": "0x4b0e443e9af0056cf150e258000ec8c15dca103f40d97a0d4afd3f900ee391995bde0ae62ad8ad90c6aa20f58a935a9944941e974383ac5e2fc19c9d5da50bd81b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}