{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "566075266",
    "entityType": "User",
    "nonce": "0x8c3d93e3bedb36d77bd124e5b371eaebdb4dc8e2724105ec829d3ebba7f3f8f0",
    "signature": "0x4386a6de546ff490438081b88a721e98dade0547825d94426dfdaf09c6e5b7a55054b1dcbad07ee8e291104b1a56a41261026d84fd3c7a03f88e96650e4367f21b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}