{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496394700",
    "entityType": "User",
    "nonce": "0x8ad4163875c66016313ad619c25a4ecc6e735e46636bd4f963c6de8d974188d6",
    "signature": "0xe113c0ffe9a4912a186bfe45223c985848f6114ee98d7a8b9a2f701887c4d4cb034207cb286472250ad635f1ae052f603948a95c166663fe64b46d2867c11ad51b",
    "signer": "0x134f5c1f8716402474824c6A0AE855af1E3053eB",
    "userId": "462352719"
  }
}