{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151338",
    "entityType": "User",
    "nonce": "0x48aa54435cacd5ab11892f6f88e83547bd548913198512e967ae2b8d5855aa37",
    "signature": "0x36d17421afe92e94198d5df789e2dfd8df00cd33695e7090d297c5613941e02723a16b40e9e1169e3f1ee2c3258baeedeb6076a12b50637b14d00f2c93d98edf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}