{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308194",
    "entityType": "User",
    "nonce": "0xf3078ad350904d16934e269c440d1a43ac12cb3fadcc3281ad7c49ba02da0432",
    "signature": "0xa9265e4742859a509bbc7e4a5f43bcb118fe23d9343a837ab3c3537b94efdf8d5a8327a306fd0d4459da64037cab457c4bbba543ca7b398e2a65c4dc4e8e5a401c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}