{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd340db58b2ca1f1e780aa850b02a8eb8778e36a934dc560946558814bb525f0e",
    "signature": "0x7d0c402bac0eb0e462ec2f33f41cb7dd71e007d0e017752201c00446e5b1086453a01cae0b3207e6ba7f1f063e13f2407a1273e7265df9100308eec06499fad01b",
    "signer": "0x5A497dFF84B7E143d1ed81cf8768eBcae8224E1d",
    "userId": "943977186"
  }
}