{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6c130e7e8f6ff4c9bbf2b01afebdd89983f1a946d1c6b2310aa7ce56ef219c5e",
    "signature": "0x238b9e61fd234a68afceb132a86e049519704fdb6e0442a166a57180089dec6c52ab131eaf7984b120cca18b7385670cc5a9c8b71a39f923b943e05b39ff6e6a1c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}