{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1523538",
    "entityType": "User",
    "nonce": "0xfea48c991f8c1da4cafa2cc2443554a331df7aff9ad618510ff48c716f2386d1",
    "signature": "0x906fcea0373b3adcf010c1dc29511170b5deee2a87e3aa00e2795facbb0fde207ec500c0ab37acd24d78169639010e4aee966705e07cae6376115e1bbb0f8b461b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}