{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdb19b6b247a724b6a69c02e81e53414d732623935de3bb4ccd88b4a6b80e5570",
    "signature": "0x0eb9a8cd669809ec82a5ec433c0978c7c533cc300c9d16c28edb6092d762f280683249733be682ab68d4b852e4ddc35e7017db5c7cbfd24b7cf85e6d3f281b9d1b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}