{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231783",
    "entityType": "User",
    "nonce": "0x1d6ee7753863640cdcdc4ad46fe7db98933b5ad3949574ca2dd898ac681cf934",
    "signature": "0x54a73364e7784c50420e3d4605a76ff745b1c06a5bb2ddf766d40d3f723f612e4df7183497d0b4ff9d21a1ebec2ef4decf5655c95b5251afaa9286bea4e5770f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}