{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135515",
    "entityType": "User",
    "nonce": "0x25cadd1cd85f70d79b0083004547a31b8284e310d144c5bbd7a8a387bdea6053",
    "signature": "0x2e5d7df6bd9f632575d36c00d454bbe2adc717f8cf72729ec86e0e26d7c75bf86ca2e0133e4c886367722f5a3d81af235fde5290b2b50e9301d311255090ebe31c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}