{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89091852",
    "entityType": "User",
    "nonce": "0x8b9808236bb4e2d4149dee76b2c75995c87cdb8b54d2aee3278579b9c1bfead1",
    "signature": "0x3f957bfc978c795a51b89fc48b33f6546b4f884fda71147979d86862a8b19e752f4ac5aa4ef70d7f135968b9b7f91046d548e14680b46d68d83f8f601d098dcf1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}