{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2009787",
    "entityType": "User",
    "nonce": "0xfd261804f09b6d060a2f7fb25dbfccbec5851611675785f7cc679818fb32bad7",
    "signature": "0xda751517893929da7a604f386625a6835b65f33ad94713239a97c7dd14fc912a53d5080d2743558cdf480d60463fae2b363179309a2cab2a288f695e51359cb51c",
    "signer": "0xD4075518293370C8887D8dd80B16bc683A59D633",
    "userId": "743640235"
  }
}