{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66452",
    "entityType": "User",
    "nonce": "0x854ccaa575f8eb0f370bcdebb4df957ea87d1fe5861d0a0d6df4e0ae101fa160",
    "signature": "0xa3e433e34d5100e0a166d774230b9283c4c1cfeef16ff0d3bee6e3467288c6bb680e5c1dffeeff03646ab11a56f8bd04acc5082e0982f8aa8c2622a39199012e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}