{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58723840bc71b1ebbfb27961d4dbbaf0a86c345f04c64ad54512c99531f9fa5f",
    "signature": "0xc835874f4a7ae013c6c32de0807b4c063eb04174cb7fd6c9e3e1b3ce8604901a180777bb4d78f9eb0f3782300a6c67e2216fa286f6be80cb03e5286647ad69c21b",
    "signer": "0x5ec2A47D82c65450F9eA23c152656b872773F466",
    "userId": "261893174"
  }
}