{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270309",
    "entityType": "User",
    "nonce": "0xd449bd32bd235f38ad7a244cdcede28264f74974c133d403993d105ad4740ee8",
    "signature": "0x651fd1a82f04c777b25bae9807b4a85cea00d7622aba3bea9125cf32a82c60de03805fbbce0941115969bae986d45eea13cfaf514f78e744e194df3e791d81c21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}