{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111789",
    "entityType": "User",
    "nonce": "0x6f6b25b407598311d753a51693f9399e70e9e4c021c95f71d8781f3c7b038ae0",
    "signature": "0x7f2f5a6298e2aec823e31c67bcfdc257846a840400c5b5fe094c9c7502b99c1c11a668cc16370d1843d0c03de2716bf1a0d51deccd87dab6a3f5e5189696ade81b",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}