{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85811cbc6d1eec996c121c9b245323028d89ceea8cd2598eb5cd7ac19a1d3bca",
    "signature": "0x0e6e9321d5bf59483fba8db53e878469bab241580fc80d5824f3ec4fb7fff20a6374a041dca6212988ef6f0014432ce9716d81d6f5b2aba984b46c07a333d55c1b",
    "signer": "0x3D7DD1f4d5D29bb054fcB0E9f4A2eA344413fbc6",
    "userId": "162601604"
  }
}