{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358394",
    "entityType": "User",
    "nonce": "0x1ba9ce339f9cadf20b091fc2d209f33466f0342f9ad6b812abfc3ad81f3b8c2e",
    "signature": "0x1920b1af4f42cf04af25966c81cb04107b611ce23a1d6ebac35c73dfd8d0cddf286212207bce93493bb1e2e0cb2bd1d96c20d675d14695fc80745f8fb4b1b0711b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}