{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332892",
    "entityType": "User",
    "nonce": "0xa24abb1b4e73bfb71eba33f924b49b8f8fa8ea26d73662aee5cb3c49b0c2b1a8",
    "signature": "0x2a12d5721f59c2f4105126a0878aed57bfb8043ed603b58bf9d0bc20069c4d31001c6f49c0714acf394b06738d79541157a564abaf47f44921a11cfd6f1e07fe1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}