{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0x3a07787302b690ad1af1dc370949fc1d7941a88668985d57bc561065bd63d5bc",
    "signature": "0x948e947d79aa73f56de0a9bbe68dcd2667baff03908b869043766a93e17c385e165edcd2b6c0de73c7d4c8a3192e4b2fcba350698d6717eeb2e0d8870077b2981b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}