{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0xf2c0c97f2c057ddd8d1ecb22f19b1b027cfea7352912a55c259514dfff7ea04a",
    "signature": "0xfa859d8325109015e61f5857348be644214f4e23f71276c0cf7c476bf20abf891a831bc3ea844a9e2f181a613e1ef98cc040100df286bd5d9c8fb2ba2b9a53fb1c",
    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
    "userId": "934065758"
  }
}