{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54038",
    "entityType": "User",
    "nonce": "0x9b376f74b2d3093f0e2aac32204a0274c70ec2aef5e47af93d30a4cafe35b89b",
    "signature": "0xf8dc11dad10ff0ceec9d62b24812fb21a30640c0ce6bb9ace1503aeb8f97a6c320de10160052adb31f569569155fadb09c9621cd2b44beb4f67c65aa1c11783a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}