{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1545055",
    "entityType": "User",
    "nonce": "0xdc6cc1bdc13ae8310685af45235f407269c04ac489c512723d69b6f2bb026d3a",
    "signature": "0x0bc2b76df393682e0fecb1ad738c63b3b6072437228d0b0a4e2e7f88b8df311279c8c6b4c1a7ed975af92450e859d70da430d1c35c8e6b200d4c098027df024c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}