{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145270",
    "entityType": "User",
    "nonce": "0x23f854d22dee0b156ecb7ffc35f5c501ff8174dc8564d55540d48c1353f2941d",
    "signature": "0x17308faac111467d51f9888255c83d7a77169df1699bd30ba2b54980edd1fddf75810f31495a29009f801f3567516cc8e59fc9464956fa8993e8256405cfc7631b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}