{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "455179560",
    "entityType": "User",
    "nonce": "0x68132b6503f7c18bdda88247d352a4bd5e551bdae71fdc89a0412f3586d3c950",
    "signature": "0x8c913ffb224272dd9750338ee912d69d1aed1031e16f04e88d000f467609691808ecf7740be016821c318c4dd12c1c74f31e75aedc8f3bcbbfec94c24cbb7d531c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}