{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1684",
    "entityType": "User",
    "nonce": "0x6cc8baa65b6ceafd8161cc826b432994f2dd6c64ab6d731daff2d5d44119a245",
    "signature": "0x908c956ade357037ee79a992e3bc1e9852458f646e17d2e2c88fe1150a455024443164c6fb4944521dc5537e7a2cce680107e122297dcbcdd287d93d06fed7ee1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}