{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383641",
    "entityType": "User",
    "nonce": "0x1ea90d7dd036033a0d0c673e87b79bf450fbf20bc7c0bec2cff96e08ef4d43a2",
    "signature": "0x7948848b4e7007a04fa6fb80d1a9d8670387732d48cceacd1934481621c6144921d8781b728a14ca863c98c87876c020c2941f3a2c3c40ca3110c3a69f5de0691c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}