{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x24fd0c911ea5855d1243fa4eccb30262e103dad4f11e7aeafb85711eff781878",
    "signature": "0x0f73e1f6add1724cf601976b02e7fcfae7d76e9e5f71a5cd0e6bd9cc8ebc97e85bf3b0c7c50e044bc604a696f1910943c742396e11166d842d8d7fd9d76726bf1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}