{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1478492",
    "entityType": "User",
    "nonce": "0xa26b40f79e88cc411463323b312697a592825c24248bb513460c0d6e835b16a4",
    "signature": "0x4d0fa6294b325d9484451056cecc442bef617c1f0d6a5c9e60e51bfbc28afb7a71a76544757c4ef826aab5d4c4ff15f0e26d8979f941388b0198b26811aa105b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}