{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21894",
    "entityType": "User",
    "nonce": "0x36f7fe0aaf2c73710cc8114bb15ada2a8e2c9d095003fda373c20fdb17a95e32",
    "signature": "0x4e4ceefcc145861aa268fe9d9c9bd8c5a1347593a9e34520883fd02b4e3495383113fb9cbe0c878fd05139432f4d3c34db17a4077a45bab0795ae77fd68770101b",
    "signer": "0x03dB479a8E887D4696e53C007b70b3EA318049d2",
    "userId": "773573937"
  }
}