{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315121",
    "entityType": "User",
    "nonce": "0xed1abe8d620289e2e80cc2f98089b1431f56c38eed682cde6d15b161db5ce55b",
    "signature": "0xd193017abe7972c2d9880c870109b66d438f870f420a22a4c679e4772061afff2d4a2590072dc8dc1c7d4d92880bff72dd0950b1aab0f2aa7c7326deedfd4d8f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}