{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89cad0cc4ab4d8e042bd96d00eccf3d738fb02bcccaf4ede6b11ca43702d12d1",
    "signature": "0x721b0158b20f8ee03a6824433b114e38fbd16f88fbd0d233cf1ebeb00ed119997c22da4b6ae7abaca7f2d20bfa8c114d55fde2d28c6690a8c03c7d6de897e6051c",
    "signer": "0x89e959Ce634B73019d7cebb43AF1BF452986477b",
    "userId": "760665704"
  }
}