{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329041",
    "entityType": "User",
    "nonce": "0xd1422e03ae9489acae2e69831b7381b649802083881df8cc9ab3c366a97438ba",
    "signature": "0x30fda0e1d6c11e258f6a8ad7940a319908868fffc1e299665f0d396629b7176d06f630a8caf284fb4be9b73091d51012883c31f2f20cf7f119cb984d77d3dc0a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}