{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "626857797",
    "entityType": "User",
    "nonce": "0x0f4551d98f4d0644795e653a787230f62e542aceda4bcca83d151dbc64a938c8",
    "signature": "0x2fb1739be9ef276f3724a29184e62caedbba2af5138c2726f89f5be1bc82e01542781141b0225828b0b35e34785913d853146767f40f4f22ea65a7cc406ce3601b",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}