{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x46a6bd8812d5520b876c6959986c502b13182d2c9115f5bac3f606c676872d78",
    "signature": "0x789bf6d37b9521fcec50534b4aa04693e2cb7da310a2030c1dd6f44af41117b751135def05626b8fb1eb99af07692ef4e25a5a5f51232174f91aa601506bd5231c",
    "signer": "0xBCd27E40808aE07c9aEF50BBf3d7E0bcCd8fCacC",
    "userId": "856877663"
  }
}