{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1810",
    "entityType": "User",
    "nonce": "0x42bcdbaecd707ae2b044ab85ea0b9997beb1851987c799b4c1e0512eb2f9bb6f",
    "signature": "0x137fe28d7ab018674034e490054f329fedc061dfa93b7a8d4afabd45131342375def36a1716e76188479d89ae1e1dc0b3eb0576cd20c567ee22bebf723b929e51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}