{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240171275",
    "entityType": "User",
    "nonce": "0x5f41879e1e3a558e8d54a32520f3cd3a1cec054569ec02cafc8ef72e6dd0680b",
    "signature": "0x2a02040b88b52f6ab95c74c559f8dc825547c581436d887153da302320ede7041eca1c46136d7c62e2f2f8f385c3005f63318e58511984fc6ba42951391bde741b",
    "signer": "0xa3861Bde44C7a83411C7CdA6C5b5951356E29C39",
    "userId": "821699550"
  }
}