{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306115",
    "entityType": "User",
    "nonce": "0xff7a5f96abb758ec0b31c3651b7a570f3c9014f53ea1f5d42d021a34f9195e39",
    "signature": "0x1915aa68c49b32f261cd874166ca892da293f306dda17fc84f0e57175010b7ba06f45d1e7049cd44d627e51b02e77c62142ff0d9325067e1dc72ff7f48b847611b",
    "signer": "0xf4932982eB30F083aAeE8850Fe5d411b7A5Df5a5",
    "userId": "746635137"
  }
}