{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x817389068da6e6d4b000fa0ea8cb63b08f49df5ea74fc675ff73f350642a7e9f",
    "signature": "0xc378e848b37cd1f8f105c6bcba0020a79fb06f0f4d150994a3d19ddc272d0b552b06245de30763be6286c1c33e4cfd04ef1358f667f9e76619cd505c389f35811b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}