{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270471",
    "entityType": "User",
    "nonce": "0x22ce9f396aa2bb0b0ecfa3ab2569ecb995feab1c5970bd493602b47ffcbf2b78",
    "signature": "0x2cc1c8a106ce883b84284f7a8cef06a12304cfb2bcff6ede4445c841a81514f21237f1b5e4b1e6904f026b4320215175f1fed8a6504d3cfd8f09755049d9eb671b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}