{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127304",
    "entityType": "User",
    "nonce": "0x687b15b9d49c4b868a7015eb62f7a8ac261c54c13e03df1656842aba81883a7e",
    "signature": "0xf2a40b461fe2d5c3f55fb85d0919a6381c75955697b13b976c304d6b5b2dc7a52dd820eed1f1f1d7d63760aa16587598e521d084a25b976acdfad4bbeb5d0b971b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}