{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "883647137",
    "entityType": "User",
    "nonce": "0xbc4d476ef5bf073f63835e791d3dbb2c1bf42e753f6780f644f53a2d2ff33326",
    "signature": "0xbe2bd98b17de6f255d511efe9f7309dbf98ee0b380c600c2b74b63bd65304a094642b5f4ce67ea5cfb4aa9c14cf819bb1eb0388fba29990d52f294dc9547764d1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}