{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980441",
    "entityType": "User",
    "nonce": "0x31c4bf8bf0db550e2946267cb10be59c30f61edcb827385e4bedeab794592780",
    "signature": "0x048d5217a352be07aca0be44682dc16a8dc16ab3730da2b7dcde9dc14a00ecf45d455d501a26c94d1e54765fccf42d7e9aca95d1449574e65a00cb857c830b851b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}