{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6327",
    "entityType": "User",
    "nonce": "0x477bfc549b56086a0da0da102a7c94369177d272f188f5388d3aa6d3c942f770",
    "signature": "0x52359f25d4b6f83ee2d98f2beb25e3ec448ad829482ce6b3d6ef05b1f74659e43d5b82a163583730ae64a4557c56a0bb05e5f32fc198dfcd95cf2e5fbd7e997e1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}