{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1873428",
    "entityType": "User",
    "nonce": "0x1cd29bcbbf49f08665bd157dea9be7a023e16e686bcf0e260a46a723b6c05cf3",
    "signature": "0xdc6218dc73fc83e0f1e46544a906317def5064d6cf990310a89e1654ca1e4602065123ded1e887a0774c816c72641b2977f6cdbeb8c009a6e4a0edf761563b521b",
    "signer": "0x395d3ac0a09Fa9B6ee1A7E0602984FC2c810d326",
    "userId": "483262046"
  }
}