{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x387b05e3c133b3ad203f07860f3d03d91547fb39d054bcb7bdbed0d6a186424b",
    "signature": "0x657ccb6ab4d4a8f7f80bf506147cdf0af0dd1ffeb3ba78acdc739d5ea8b6843309b1f71be6c02a349f78882fc86cd1148bbe41d6eac5454e3493b31a3d14ff101c",
    "signer": "0xFa2Ae54070dd8B59C9E3E33876a4F1077Ce4bf5C",
    "userId": "682449015"
  }
}