{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33421eed8cb8185579707ed394ed7b998685d5490a6c49fd834313b05d324bf9",
    "signature": "0x1774938d5685ddabc995dd7f66eb49a2faef9187a98e0e86c309cf0dce9b279f7a079e7deb606a4c1c9c0645c0f5da35a76443b908a15f6757aa4959d41226321c",
    "signer": "0x2d18c7393f72c6839937fdee79533BC1a73643b2",
    "userId": "22734091"
  }
}