{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0x1bbcbee9bba89acdba7ca681ff7b12485c4803d3309543b3ee1a1e9c09a3af61",
    "signature": "0xa0e8d74cfedfc5ecc9abaf175496f2a608211a1922e435a4f92e0bbe2928afb94496a0a2739fcbc18e03653c17c4d25491bd530dd4f3d0ecd5f5c04c13967e891b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}