{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x17b61c564cd5a92c4c8caa9b6ca1974251ebf4f6c8e943db2cc69b81bb43ffd4",
    "signature": "0x2b6e77481e93af6b635c87af5e1f628697f34c39584be6d1e53527b385198c0b77daa6c43d4c28702ca2de935af719daf4e6afaa9029145faa0e597ba9c940781b",
    "signer": "0xe36A184F22DEA11Ae4A781E3babA0A9070B78481",
    "userId": "747817898"
  }
}