{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0xb3814aab0dc82e9480e73734e98038260b99611a7ff104a804a683c281076109",
    "signature": "0x7c04e4621630eda6b65422cbf0aa05f5cab88ea6bc899ea60b45e262f78e7f52022d2b1e9e53e08081979c57e0dde19364826fbf9513c8d601f396a55ee0df2e1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}