{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192990",
    "entityType": "User",
    "nonce": "0xf94c5ccab22e3570bb664a5a4b93bf8c578de51f3f20dd8ffeb05f1749f9f93a",
    "signature": "0x6634a3eb5d8b5e77cd75b7cca52e3c2cca9596e125c0463c5f2037972c4176c43b8170709512695fe866c2e6e2a2a29d24fd9f18d249ed2f9e126ad8cd61a6851c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}