{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f5b550d3fc19aadd8734b710c8237dea4a84206ab241520c6a0f03605a3439e",
    "signature": "0xd3df5decb49f806dc7ccd2b43a300e40baed5304078a6a090b5d14ad21c306d94d1834147410c8ce1bf2ae61d0da6e5e29fd1453609b23d68ac883c89c42b2fd1c",
    "signer": "0xb53d8F14E1CFcDFcBEe3f70ee1076d7aC2B68802",
    "userId": "225339385"
  }
}