{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138823",
    "entityType": "User",
    "nonce": "0x576cc1fc3a73424e2250c3df577d197a8ea40f9ce0ccf02cc4d4ec13aa5ba427",
    "signature": "0x47f11204550f325e568756b99ae39189673ed30a099ec2c472f4cbe553e2799b76ff311a65909740f3f96bfa2669d22ed2c6c69db2a9a2c6d8dd37b5eb8628ab1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}