{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967681084",
    "entityType": "User",
    "nonce": "0x9dff332f02373854676c7892a216e7a4c0842aa81bddc7c6b76caab4b7f8a048",
    "signature": "0x88676de64615a4d2b2884623aa2bffa32f9a9350b88cf7c1bfbe10084861adaa094cc6d96de4a3b7d2ecf035dba16895cdc64b7a33f594507c619b75d05891651c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}