{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842355381",
    "entityType": "User",
    "nonce": "0x0c0fb2f1e79b93cebbb01f18b208830ec8dc0346b60cd1ecc9efbc97bd8f1a8a",
    "signature": "0x150eee0a10ed4f228f9a224d3f4d2f37d0b197d740c1a67053561fa16f6c3a387c89c8cc2fad4793ca6aadd19c512b9cc2d151bafc63f99032628264d6ddf1e01c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}