{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x20b627169612c6ab502c3b07eabe3b3a4a9b2e956f9665f412bc039b94cde00e",
    "signature": "0xce0bc3b813a12ce5fceb0cbd138c6f19569fb7f67fe9ba50e81d16d44030968e61745345837c3cbceae7b29fe6a67667de5d5f91414cfc0c2096ad6b1ffda8e41b",
    "signer": "0x56046a31D7E65D9342F04D2FE7819A0388654272",
    "userId": "612767122"
  }
}