{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1889998",
    "entityType": "User",
    "nonce": "0x008047e34f95b88c5b12794aec049b88a511f4636e9ae422cd0bb406eb9abe99",
    "signature": "0x41e7ec39e473e0984d83e2cf9ce2cc6a7972cb51a278ea3f508dbf968b985856386dc13f4abc72e27267aa99df3a7c984ea5c752945a7cd31c226908369ea7ea1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}