{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "419264132",
    "entityType": "User",
    "nonce": "0x3965e1166c537e3b30359d014b9e57cf5c4211ce1ca144e0ccadbfecd8f1f3d7",
    "signature": "0x5f92bf3c7908ff8b77e17a9cff271574971bac61c20e5dc5ddd874b931f787ce6d0e58631bc7a135a20dceee39ceca531f51911da2f1e642ed817d0b1352dd501b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}