{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74201",
    "entityType": "User",
    "nonce": "0x62643930450bf1765a837407f08890cc79f703caec41cc6ecc0d80fb955d3b28",
    "signature": "0x37f940b1890e9c3c1403ad60e0e9b70823a7e5a4108e7ae49825635f62fdf728552ecc2f6131cd492c67a606f493001cc6fe6b08c465ae1ab13d95c05725a4bb1c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}