{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "532585264",
    "entityType": "User",
    "nonce": "0x09fe12752f8e0d8448d0dc83be472c869fcd7cdd103b6a40eb9dc02787997776",
    "signature": "0x38e95cd6cbe4f7f0ab24a875bf56e7bd8b31795b323ca59b83ac895f7b112218443e4a3b0b3a08c3d70d96f2c88b2c64a862e689af0289715b99ddbdf738a3071c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}