{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298267",
    "entityType": "User",
    "nonce": "0x849a133c7327daf35e4e891c951688d0deee62af4caf9a885b61dc157b9579ab",
    "signature": "0xa9a4eb23624d010de9b90740077a96866faf83a9e728e2ae0aa339b082b6eaa642aede15e4a6347fe37611e4d971fcc62cfa6755d5890edce44bdb0861890bf81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}