{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276348",
    "entityType": "User",
    "nonce": "0xccf62a647a6391bbcbfd00abaca75e4927259ca719ec99cfd19b3c92703e107b",
    "signature": "0xe9ca4252a396c2e05d7427289bb2024be878b920ef83efc74b87b2266013797d69477c37f73a0ad3b83c96a8c79220a6427414b6b697b59ba4e269f682d43d611c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}