{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0xd90bd694831f0f44a92273052d18c8081b73fa824d34bf85efc97becdb9bf4da",
    "signature": "0x46a524c4cbc45e80a041961fb54564127a9d97abfb87dd082b8b9c595674b77f2163685d7dc22388e283e4849635902112c06140af2da215a70f45e372c7aaac1c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}