{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14619622",
    "entityType": "User",
    "nonce": "0xa4aa4414e06ff6ad651161001fa6685fa68e188d279a70e2a03281a08f06e773",
    "signature": "0xfa401559e1f6bb0934315f98b9b9db5bfa25759cf1c28e526a250329cb3830cf157ca223c612f016eac1eaf099d97129c6e5734702165cf059ad989ead936b631c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}