{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0x5e64ba3b4f0a595ac467ee7cf3cba6d81c1d21168b01752be4c676e5dcfcc235",
    "signature": "0x2f718cd68607b9813cf5c315318c279efd97e60c1435b20c145ecbdb89911c8a74351237fefc40d9c366beb98dc26318d07d4e959f014829110e9607c90a5a401c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}