{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xabb23a3c2b152928a63ca15e5b2758103370ce9e450823e0bfd716fb474e0a7a",
    "signature": "0x8b47b463ba73f264ea415d54ab5b2cedb577c9b3425f8d3d881d1c3416248cd9269335c75bc6acaf9a0ecb69fbee49b3992ed99e3a2524234504da8c1350c3111b",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}