{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0x25734dbb30f0158dec432042e66b75381323a08ff5a1786cd6e2f32d0a3eb4e6",
    "signature": "0xc444ce1cecac1fcf3f05b510d6ea3872970a1a1cf5df2ad56cb32946a24bb0fc3061a00a7d11c1aeb532efcec2490fb3e7da0221acbe1fca1c2fcfb573056cb71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}