{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x996274c1d58ec3558b471cb11566878f1ab647da3d1632d6dbf4ab6472b58380",
    "signature": "0xcd3e1a03e6adf639bb8347d5ba746862b7c4baa95bed2e51e2d044a87cb945321c5d3e64e7cc8e7ebaadf698e78562ddacdc059af6243743494b1fc0a54d6a941b",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}