{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348321",
    "entityType": "User",
    "nonce": "0x761b713af8d57f6373354491cced574c8e683b55512a732ad0859adc7a174085",
    "signature": "0x8f146d9540678d69527399cb2ea60157f5e372d8d4d6deee453f8734a9a7edfa2e8ca5078e061159ac7250186e0f677c43e3971c1504213ab28c12ff6aacd65d1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}