{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc832a34e030f9e216d515a613dc926f86ce05a3df9be556d173063c2025b39f",
    "signature": "0xbb92df1623468e041ee3d44bec5eb06c881650ffd71c9e1a7647714b9cd53d3e6a1eb93ab27acac5d0d656d0f05afe6126b05ba209fe3f57b7733d8ef8f727a31c",
    "signer": "0xd70cC881fbB38d68490cf7A578B24F81B4d24fb4",
    "userId": "873212552"
  }
}