{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957873025",
    "entityType": "User",
    "nonce": "0xf78cc9978584d19bce597edc1ab32167552631d56b4268536aa560aa3d607816",
    "signature": "0x32a2b77d6fc30abd6c02458fca09f339e4e8fb9c9bb5aea88ee2e1db6b5e05d40df2c5c61370b1187b7032dc1124fba3db9a132d2b2e3dd5df7dac6986d561131c",
    "signer": "0x83d22deAd53BaAD0Fd2A640a06E20cbD008eF02e",
    "userId": "415523180"
  }
}