{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83a1be4a8792098466e9ee87c610dc4f932c45a18f3aab51ad41a56040332d39",
    "signature": "0xf7c6d0325c4047727c0a3c23b1dabf48517fdb43f9fed4a56b6730ac14a04d9b25c47d0751a696cddc7136b4bbc0b494df0bb2f5315f4e541c2a722d3907efed1b",
    "signer": "0x08Cb4a264810D320229f229688F558F5894fC448",
    "userId": "81039471"
  }
}