{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0x0e573cbd27f17368c902f56159196ccd5fcaaa3d20d2fa8ea41dffcaffe60c97",
    "signature": "0x5557fe5109690593d2859bb7cefb61e627bc2f1091c39cdb75a793abcb6501dc5e4f9e06358fb73966bb7c43280d03e44e12f68441741639522a5c7c0c07eb271b",
    "signer": "0x2CD314789C9583D12b6F54862F9E2cf505880Ad9",
    "userId": "354640"
  }
}