{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xafb9122c22cc1ff5760bd9e5302476a90d08ba224d2eeb2321e4d6eda8a933d0",
    "signature": "0x0ebd4f2a1005c80bd9d15e017ae2ea13cdfb0126d5a07d946cf257f4e828bb933094d6e8c84b6b97285ff3c089f9ae95fdf755af7331f01293d16ad15ccd3a461c",
    "signer": "0x286C4Cc94CeAe11fF85809c6Ff5476416F7Ff521",
    "userId": "314898675"
  }
}