{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "996978306",
    "entityType": "User",
    "nonce": "0x793b28042535fafbe61f6bcb5bddf533a117c2dbde35a3feee3913d46947ed69",
    "signature": "0x2b57068ab828e3005fb2f58ccca53d755da0c0f025a9313613c1ae6074009653333203732712e0d8f7063a81367ea1f6ff11ffa8763ac67988b36817ce16c2201b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}